Hymen is broken after self pleasuring?

It is possible you may have broken your hymen, but you didn't say exactly how you were masturbating. It may be that the blood was from your hymen, or perhaps you scratched yourself, or maybe this was early indications of your period starting. You don't give much detail

If you are concerned about your hymen, why not check it yourself using a handmirror. Do you know what you are looking for? Alternatively, someone you trust implicitly oculd check for you.

I checked it by a hand mirror and I have seen a pink skin with a big hole inside ( last week was smaller) . The pink skin is surrounding the hole from both sides up and down .
Will I bleed on my wedding night ? will my husband know about my hymen ? I never had sex in my life

It sounds like it is still intact, and so there is a good chance you will bleed on your wedding night, but it cannot be guaranteed. Not all women bleed on first sex.

The size of the penis can have some bearing on it. A narrower penis is less likely to cause bleeding than a large one.

You say it was a smaller hole last week. What have you done since then? Exactly what you have done may give an indication of the likelihood of bleeding later.

If you have never had sex, then your husband should believe you, but not all men understand how a virgin may not bleed.